Gentlemen, I wonder what kind of addons you use to perform passive hold of position for UAV tails, robotic arms, domed cameras etc? Stepper motors must always be powered otherwise they'll loose 99%…Continue
""power is nothing without a control"by replacing omni antenna with a sector antenna (i.e. to beam only downwards) one would achieve the same result with half of an input power. Do the same on the GCS and you'll' boost efficiency…"
"If you'll be pushing these modules to their limits (above 3 amps), don't forget two things - a good heatsink (those tiny radiators with a sticky tape) and some 1000uf low esr capavitors on the input and output. Otherwise, they'll fail…"
"I've made lots of investigation last year on Tesla turbine design. The problem is an absence of scientific study on component placement (layer thickness, cross-layer gap, hole distance etc.). If brushless motors are known to reach 96%…"
atmega2560 costs 5x the 328P, so wouldn't it make more sense to use 328P + 4051 or 4067 MUX for voltage/current sensing? Or is it the same uC to be used, not the separate-one?
uC controlled battery switch, where the same uC is…"
"for $7 that's a fine device.
I've been looking for this kind of function for two weeks and ended up with ACS712 for the current sensing together with MTP3055VL MOSFETS for a 5V controlled switching. Full circuit came to cost just above $6…"
"hey wait a minute, I thought drones are streaming upstairs? Plus, since its a satellite uplink, it can't be analogue data stream, can it? Then, it gets a bit tricky for Iranians to capture such kind of data, unless their flying carpets are…"
"one thing is to capture drone with a fake GPS signal, another is to disassemble military-encrypted code. Once they'll get that thing into the air, I'll have my thumb up (for Russians of course - they helped then, they might help now)"
"dude, I have the same thing in my basement, just not as pretty,
Worked great untill I was screwing with the older DCM code and had an incident :)
Just waiting for some HK stuff before she files again, modding the mission planner for…"
"Andrew, if you're up to catch a JetStream, why are you aiming for 120k feet, instead of 50k? I did also a check on your link on x-plane simulation, but missed the pressure data on the screen - you should double check there's a standard ISA…"
"Temperature is a least thing to worry about (IMHO). At altitude of 36km you'll have pressure of ~500Pa, which is 200 times less than that on then surface of earth. For your plane to fly, it must either have 200 times aerodynamic surface,…"